Vulnerability Discussion
The use of separate file systems for different paths can protect the system from failures resulting from a file system becoming full or failing.
Check
Verify that a separate file system/partition has been created for "/var".
Check that a file system/partition has been created for "/var" with the following command:
$ sudo grep /var /etc/fstab
UUID=c274f65f /var xfs noatime,nobarrier 1 2
If a separate entry for "/var" is not in use, this is a finding.
Fix
Migrate the "/var" path onto a separate file system.